package com.ns.school.common.interceptor;

import com.ns.school.common.utils.CommonUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * 自定义拦截器
 *
 * @author Spark
 */
@Component
public class SecurityInterceptor implements HandlerInterceptor {

    private static final Logger log = LoggerFactory.getLogger(SecurityInterceptor.class);

    /**
     * 在业务处理器处理请求之前被调用 如果返回false 从当前的拦截器往回执行所有拦截器的afterCompletion(),再退出拦截器链
     * <p>
     * 如果返回true 执行下一个拦截器,直到所有的拦截器都执行完毕 再执行被拦截的Controller 然后进入拦截器链,
     * 从最后一个拦截器往回执行所有的postHandle() 接着再从最后一个拦截器往回执行所有的afterCompletion()
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
        log.info("REQUEST_URL: {}; PARAMETER: {}", request.getRequestURL(), CommonUtil.readRequestBodyToMap(request));
        return true;
    }

    /**
     * 在业务处理器处理请求执行完成后,生成视图之前执行的动作
     */
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
    }

    /**
     * 在DispatcherServlet完全处理完请求后被调用
     * <p>
     * 当有拦截器抛出异常时,会从当前拦截器往回执行所有的拦截器的afterCompletion()
     */
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
    }

    public SecurityInterceptor() {
    }
}
